cvedb.io
CVE-2026-48121
MEDIUM · CVSS 6.7
EPSS exploitation probability: 0%
Published 2026-08-04T17:16:55.267 · Last modified 2026-08-04T20:16:51.900

Summary

@langchain/langgraph-checkpoint-mongodb provides a LangGraph.js CheckpointSaver implementation that uses MongoDB for storage. Versions 1.3.0 and below are vulnerable to NoSQL injection: checkpoint identifiers (thread_id, checkpoint_ns, checkpoint_id) from config.configurable are passed into MongoDB find() queries in MongoDBSaver.getTuple() without type enforcement. If an attacker supplies an object payload (such as MongoDB operators $gt or $ne) instead of a string, it can be interpreted as a query operator, bypassing thread scoping and leaking checkpoints, including pending writes, across tenants. Applications are at risk if they forward untrusted input into config.configurable without coercing it to strings or validating it against a schema, particularly in multi-tenant or user-isolated s

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.